Multiport valve
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United States of America Patent
Stats
-
Aug 13, 1991
Grant Date -
N/A
app pub date -
Mar 8, 1990
filing date -
Mar 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a hydraulically operated multiport valve having a floating position for connecting the cylinder chambers of a hydraulic piston-cylinder drive, a valve slide and a restraining piston associated with it are provided. By means of a respective dimensioning of the surface of both the part of the valve slide which can be charged with control pressure for attaining the floating position and of the restraining piston, a displacement of the restraining piston against the maximum pressure present in its control chamber becomes possible.
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